This means that the DVS software needs approval under the Mac's Security settings. Go to the Security & Privacy pane in System Preferences and allow system software from Audinate to load. See https://developer.apple.com/library/content/technotes/tn2459/_index.html for more information.If the error persists, in many cases this can be addressed by doing a full DVS reinstall via Library/Application Support/Audinate/DVS/Uninstall DVS, then install DVS again.On some installs, the kernel extension can be blocked by the Mac’s System Integrity Protection resulting in the application not being shown within the Security and Privacy settings. At this time, the only option to address the issue is to disable SIP https://developer.apple.com/documentation/security/disabling_and_enabling_system_integrity_protection.